Nimbus Roboto response files

I have created an Installshield response file to be used as an unattended installation of Nimbus Robot, but for some reason (on various tested VMs) it will sporadically work, leaning towards the side of not working for most tested VMs.

Using the -r for recording my initial testing, I created an *.iss file to be used:

NimBUS_Robot_7-80.exe -r -f1c:\test\test.iss

To use this file I would then be able to run:

NimBUS_Robot_7-80.exe /a /s /sms /f1c:\test\test.iss

However, randomly this would not work, usually failing with the error code:

-5 File does not exist

Do you happen to have a Nimbus Robot that I could download which does allow for a proper unattended installation?